Why rap?

When people looked at the mural that we drew at school, they responded to the mural really well.. What comes to your mind when you look at the picture?

Work on progress.. Bob is not in the picture..

Based on our observation, people would ask “Why rap?”. I do not have the answer either as it was plagiarised directly from somewhere in the net. However, it is good to make others not just looking at the mural, but also thinking about it as well. huhuhu..